Burglar-alarm attachment for alarm-clocks



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G. 0. FARGIOT.

BURGLAR ALARM ATTACHMENT POR ALARM GLOGKS. No. 437,984. Patented Oct. 7, 1890.

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CHARLES O. FARCIOT, OF SAN FRANCISCO, CALIFORNIA.

BURGLR-ALARIVI ATTACHMENT lFOR ALARM-CLOCKS.

SPECIFICATION forming part of Letters Patent No. 437,984, dated October '7, 1890. Application led December 3, 1889. Serial No. 332,440. (No `model.)

To all whom, t may concern.-

Be it known that I, CHARLES O. FARCIO'I, a citizen of the United States, residing at the city and in the county of San Francisco and State of California, have invented certain new and useful Improvements in Burglar-Alarm Attachments for Alarm Clocks; and I do hereby declare the following to be a full, clear, and exact description of said invention, such as will enable others skilled in the art to which it most nearly appertaius to make, use, and practice the same.

My invention has relation to certain new and useful improvements in what I term burglar-alarm for attachment to the ordinary alarm-clocks; and it consists of the parts and details of construction as will be hereinafter more fully shown in the drawings and described and pointed out in the speciieation and claims.

The object of my invention consists in providing an attachment for alarm-clocks which shall convert the same into an automatic burglar-alarm, and which at the same time shall be effective in its operation, simple of' construction, and less expensive than any device of asimilar nature heretofore known to me.

Referring to the drawings forming a part of this application, in which similar letters of reference are used to denote corresponding parts throughout the entire specification and several views of the drawings Figure l is a frontview in elevatiompartly broken away for the purpose of illustrating more fully the alarm-connection; Fig. 2, a side view in elevation, partly broken away; Fig. 3, arear view of the clock, and Fig. 4c a det-ail view.

The letter A is used to indicate the ordinary stop or catch for the spring-alarm rod B. The upwardly-projecting arm a of said stop has secured thereto below the foot or stop proper b the forwardly-extending luge, by means of which the alarm-rod B is thrown out of contact with the foot b, as will hereinafter more fully appear.

The letter C represents the operating-lever, which is provided with the downwardly-extending lug d, and is fulcrumed thereby between the bifurcated ends of the standard D, which is soldered or otherwise secured to the inner face ofthe clock-back E. The inner end of the operating-lever has formed thereon the' shoulder or projection el', which contacts, as will appear, with the lug c, secured'to the spring-slop. The outer end of the said operating-lever extends through the opening E, formed in the clock-back, and is provided with the downwardly-curved extension.

To the downwardly-curved extending portion is pivotally connected the handle or rod F, which is adapted to be swung sidewise against the outer face of the clock-back when not in use, as shown in Fig. 3 of the drawings.

The operation of my attachment is as follows: The handle or rod F is thrown outward, as shown in Fig. 2, and the clock is placed against a door or the like, and as effort is made to open the same the downwardly-extending handle is pressed or thrown downward, causing with such movement the upward throw of the operating-lever C, throwing the inclined shoulder or protection CZ into contact with the lug c, so as to move outward the foot or stop b, thereby causing the lower end of the alarm-operating rod B to be released from contact with the spring-stop A, so as to set the alarm in motion in the ordinary manner and to create the continuous ringing thereof until the handle or rod F is thrown back into its original position or until the spring of the alarm has run down. The occupant of the 'room is thus awakened in case of an attempt being made to gain admission into the room.

During the day or at other times when the alarm is not desired to be brought into play the handle or rod F is thrown backward upon the outer face of the cloclrback, as is clearly shown in Fig. 3.

I am aware that minor changes may be made in the construction herein shown and described without necessitatingl a departure from the nature and scope of my invention.

Having thus described my invention, what I claim as new, and desire to secure protection in by Letters Patent of the United States, is-Y 1. In a burglar-alarm attachment for alarmclocks, the combination of a stop or catch provided with an upwardly-projecting arm, the latter formed with a foot or projection at IOO right angles thereto, a bifurcated bracket secured to the inner face of the clock-back, and an operating-lever fulcrumed between the arms of the 'bifurcated bracket and having its outer end projecting through a suitable recess in the back of the clock and its inner end provided with an upwardly-extending lug adapted to throw the stop or catch out of engagement with the alarm-rod of the clock upon the upward movement of the inner end of the lever, substantially as set forth.

2. In aburglar-alarm attachment for alarmclocks, the combination of a stop or catch provided with an upward1y-projecting arm, the latter formed with a foot or proj ect-ion at right angles thereto, and also provided with a laterally-extending shoulder or projection, a suitably fulcrumed operating-lever having its outer end projecting through a recess in the back of the clock and its inner end provided with au upwardly-extending lug adapted to bear against' the laterally-extending shoulder or projection, so as to throw the stop or catch out of engagement with the alarrn rod of the clock upon the upward movement of the inner end of the lever, substantially as set forth.

3. In a burglar-alarm attachment for alarmclocks, the combination of a stop or catch provided with an upwardly-projecting arm, the latter formed with a foot or projection at right angles thereto, a bifurcated bracket secured to the inner face of the clock-back, an operating-lever fulcrumed between the arms of the bifurcated bracket and having its outer curved end projecting through a suitable recess in the back of the clock and its inner end provided with an upwardly-projecting lug, and a handle pivotally secured to the outer end of the operating-lever, Substan tially as set forth.

In testimony whereof Iaiiix my signature in the presence of two witnesses.

CHARLES o. FARcIoT.

In presence of F. E. MONTEVERDE, N. A. ACKER. 

